O4
G91G28Z0
T2M6
G54G17G40G49G80G90
M3S2000
G43G1H2Z100F2000
X-70Y0
Z3
#1=0
N10 #1=#1+0.5
G1Z-[#1-0.018] F1500
G41G1X-60Y-15D1
G3X-45Y0R15
G1Y45,C5
X45,R10
Y-45,C5
X-45,R10
Y0
G3X-65Y15R15
G40G1X-70Y0
IF[#1LT10]GOTO10
G1G49Z100F2000
M5
M99